客户端身份验证支持

客户端凭据

使用 client_secret_basic 进行身份验证

开箱即用地支持使用 HTTP 基本认证进行客户端身份验证，无需任何自定义即可启用。默认实现由 DefaultOAuth2TokenRequestHeadersConverter 提供。

给定以下用于 OAuth 2.0 客户端注册的 Spring Boot 属性

spring:
  security:
    oauth2:
      client:
        registration:
          okta:
            client-id: client-id
            client-secret: client-secret
            client-authentication-method: client_secret_basic
            authorization-grant-type: authorization_code
            ...

以下示例显示如何配置 DefaultAuthorizationCodeTokenResponseClient 以禁用客户端凭据的 URL 编码

  • Java

  • Kotlin

DefaultOAuth2TokenRequestHeadersConverter<OAuth2AuthorizationCodeGrantRequest> headersConverter =
		new DefaultOAuth2TokenRequestHeadersConverter<>();
headersConverter.setEncodeClientCredentials(false);

OAuth2AuthorizationCodeGrantRequestEntityConverter requestEntityConverter =
		new OAuth2AuthorizationCodeGrantRequestEntityConverter();
requestEntityConverter.setHeadersConverter(headersConverter);

DefaultAuthorizationCodeTokenResponseClient tokenResponseClient =
		new DefaultAuthorizationCodeTokenResponseClient();
tokenResponseClient.setRequestEntityConverter(requestEntityConverter);
val headersConverter = DefaultOAuth2TokenRequestHeadersConverter<OAuth2AuthorizationCodeGrantRequest>()
headersConverter.setEncodeClientCredentials(false)

val requestEntityConverter = OAuth2AuthorizationCodeGrantRequestEntityConverter()
requestEntityConverter.setHeadersConverter(headersConverter)

val tokenResponseClient = DefaultAuthorizationCodeTokenResponseClient()
tokenResponseClient.setRequestEntityConverter(requestEntityConverter)

使用 client_secret_post 进行身份验证

开箱即用地支持使用包含在请求体中的客户端凭据进行客户端身份验证，无需任何自定义即可启用。

以下用于 OAuth 2.0 客户端注册的 Spring Boot 属性演示了配置

spring:
  security:
    oauth2:
      client:
        registration:
          okta:
            client-id: client-id
            client-secret: client-secret
            client-authentication-method: client_secret_post
            authorization-grant-type: authorization_code
            ...

JWT Bearer

请参阅 JSON Web 令牌 (JWT) 配置文件，了解有关 OAuth 2.0 客户端身份验证和授权授权的更多详细信息，以及 JWT Bearer 客户端身份验证。

JWT Bearer 客户端身份验证的默认实现是 NimbusJwtClientAuthenticationParametersConverter，它是一个 Converter，通过在 client_assertion 参数中添加签名的 JSON Web 令牌 (JWS) 来自定义令牌请求参数。

用于签署 JWS 的 java.security.PrivateKey 或 javax.crypto.SecretKey 由与 NimbusJwtClientAuthenticationParametersConverter 关联的 com.nimbusds.jose.jwk.JWK 解析器提供。

使用 private_key_jwt 进行身份验证

给定以下用于 OAuth 2.0 客户端注册的 Spring Boot 属性

spring:
  security:
    oauth2:
      client:
        registration:
          okta:
            client-id: okta-client-id
            client-authentication-method: private_key_jwt
            authorization-grant-type: authorization_code
            ...

以下示例显示如何配置 DefaultAuthorizationCodeTokenResponseClient

  • Java

  • Kotlin

Function<ClientRegistration, JWK> jwkResolver = (clientRegistration) -> {
	if (clientRegistration.getClientAuthenticationMethod().equals(ClientAuthenticationMethod.PRIVATE_KEY_JWT)) {
		// Assuming RSA key type
		RSAPublicKey publicKey = ...
		RSAPrivateKey privateKey = ...
		return new RSAKey.Builder(publicKey)
				.privateKey(privateKey)
				.keyID(UUID.randomUUID().toString())
				.build();
	}
	return null;
};

OAuth2AuthorizationCodeGrantRequestEntityConverter requestEntityConverter =
		new OAuth2AuthorizationCodeGrantRequestEntityConverter();
requestEntityConverter.addParametersConverter(
		new NimbusJwtClientAuthenticationParametersConverter<>(jwkResolver));

DefaultAuthorizationCodeTokenResponseClient tokenResponseClient =
		new DefaultAuthorizationCodeTokenResponseClient();
tokenResponseClient.setRequestEntityConverter(requestEntityConverter);
val jwkResolver: Function<ClientRegistration, JWK> =
    Function<ClientRegistration, JWK> { clientRegistration ->
        if (clientRegistration.clientAuthenticationMethod.equals(ClientAuthenticationMethod.PRIVATE_KEY_JWT)) {
            // Assuming RSA key type
            var publicKey: RSAPublicKey
            var privateKey: RSAPrivateKey
            RSAKey.Builder(publicKey) = //...
                .privateKey(privateKey) = //...
                .keyID(UUID.randomUUID().toString())
                .build()
        }
        null
    }

val requestEntityConverter = OAuth2AuthorizationCodeGrantRequestEntityConverter()
requestEntityConverter.addParametersConverter(
    NimbusJwtClientAuthenticationParametersConverter(jwkResolver)
)

val tokenResponseClient = DefaultAuthorizationCodeTokenResponseClient()
tokenResponseClient.setRequestEntityConverter(requestEntityConverter)

使用 client_secret_jwt 进行身份验证

给定以下用于 OAuth 2.0 客户端注册的 Spring Boot 属性

spring:
  security:
    oauth2:
      client:
        registration:
          okta:
            client-id: okta-client-id
            client-secret: okta-client-secret
            client-authentication-method: client_secret_jwt
            authorization-grant-type: client_credentials
            ...

以下示例显示如何配置 DefaultClientCredentialsTokenResponseClient

  • Java

  • Kotlin

Function<ClientRegistration, JWK> jwkResolver = (clientRegistration) -> {
	if (clientRegistration.getClientAuthenticationMethod().equals(ClientAuthenticationMethod.CLIENT_SECRET_JWT)) {
		SecretKeySpec secretKey = new SecretKeySpec(
				clientRegistration.getClientSecret().getBytes(StandardCharsets.UTF_8),
				"HmacSHA256");
		return new OctetSequenceKey.Builder(secretKey)
				.keyID(UUID.randomUUID().toString())
				.build();
	}
	return null;
};

OAuth2ClientCredentialsGrantRequestEntityConverter requestEntityConverter =
		new OAuth2ClientCredentialsGrantRequestEntityConverter();
requestEntityConverter.addParametersConverter(
		new NimbusJwtClientAuthenticationParametersConverter<>(jwkResolver));

DefaultClientCredentialsTokenResponseClient tokenResponseClient =
		new DefaultClientCredentialsTokenResponseClient();
tokenResponseClient.setRequestEntityConverter(requestEntityConverter);
val jwkResolver = Function<ClientRegistration, JWK?> { clientRegistration: ClientRegistration ->
    if (clientRegistration.clientAuthenticationMethod == ClientAuthenticationMethod.CLIENT_SECRET_JWT) {
        val secretKey = SecretKeySpec(
            clientRegistration.clientSecret.toByteArray(StandardCharsets.UTF_8),
            "HmacSHA256"
        )
        OctetSequenceKey.Builder(secretKey)
            .keyID(UUID.randomUUID().toString())
            .build()
    }
    null
}

val requestEntityConverter = OAuth2ClientCredentialsGrantRequestEntityConverter()
requestEntityConverter.addParametersConverter(
    NimbusJwtClientAuthenticationParametersConverter(jwkResolver)
)

val tokenResponseClient = DefaultClientCredentialsTokenResponseClient()
tokenResponseClient.setRequestEntityConverter(requestEntityConverter)

自定义 JWT 断言

由NimbusJwtClientAuthenticationParametersConverter生成的 JWT 默认包含iss、sub、aud、jti、iat和exp声明。您可以通过向setJwtClientAssertionCustomizer()提供一个Consumer<NimbusJwtClientAuthenticationParametersConverter.JwtClientAuthenticationContext<T>>来自定义头信息和/或声明。以下示例展示了如何自定义 JWT 的声明

  • Java

  • Kotlin

Function<ClientRegistration, JWK> jwkResolver = ...

NimbusJwtClientAuthenticationParametersConverter<OAuth2ClientCredentialsGrantRequest> converter =
		new NimbusJwtClientAuthenticationParametersConverter<>(jwkResolver);
converter.setJwtClientAssertionCustomizer((context) -> {
	context.getHeaders().header("custom-header", "header-value");
	context.getClaims().claim("custom-claim", "claim-value");
});
val jwkResolver = ...

val converter: NimbusJwtClientAuthenticationParametersConverter<OAuth2ClientCredentialsGrantRequest> =
    NimbusJwtClientAuthenticationParametersConverter(jwkResolver)
converter.setJwtClientAssertionCustomizer { context ->
    context.headers.header("custom-header", "header-value")
    context.claims.claim("custom-claim", "claim-value")
}

公共身份验证

开箱即用地支持公共客户端身份验证，无需任何自定义即可启用。

以下用于 OAuth 2.0 客户端注册的 Spring Boot 属性演示了配置

spring:
  security:
    oauth2:
      client:
        registration:
          okta:
            client-id: client-id
            client-authentication-method: none
            authorization-grant-type: authorization_code
            ...
公共客户端使用代码交换证明密钥 (PKCE) 支持。当client-authentication-method设置为“none”（ClientAuthenticationMethod.NONE）时，将自动使用 PKCE。